The Android 4.4 KitKat update for the Nexus devices such as the Nexus 4 and Nexus 7 is going to be sent soon, i.e. in a couple of weeks as said by the makers, but if you are looking to have that running already in your Nexus 4, there is a ROM that is alraedy available, and although that isn’t an official ROM from Google, you can try it out to get an experience of what actually the Android 4.4 would be like, when Google sends the update officially to your device.

Although you might enjoy doing this and trying out the new ROM on your device, do remember that this would void the warranty provided by the company, and you would need to backup all the data before trying out the installation of the 4.4 KitKat ROM on the Nexus 4.

For this one to install, the device should have the TWRP custom recovery or the Clockworld Mod installed because it won’t be installing on the stock TWRP custom recovery. Now, to install you need to follow the steps given below.

Download the ROM file from the following link: Click here
Now, transfer the downloaded ROM file to your Nexus 4 internal storage, by connecting the smartphone to the computer and then transferring the file to the root folder of the Nexus 4 device. Make sure it is in the root and not somewhere within any folder

Pre-installation Instructions

Power down the Nexus 4 smartphone

Boot up the phone in recovery mode, by holding the volume and the power buttons at the same time

In the recovery mode, you will have to use the power buttons to move up and down, and to execute anything you need to press the power button

Move down until you see the option of Recovery mode, and there press the power button so that you are booted into the recovery mode

In the recovery mode itself you would see the option of “Backup & Restore” which you have to do first because you might be wiping and losing all the data during the ROM installation, so backing it up is necessary

Once the backup is done, you need to go to Wipe Data / Factory Reset option and follow the different instructions or prompts until the reset is done

Now go to wipe cache partition and follow the different instructions

Go to the Advanced section and select “wipe Dalvik Cache” and follow the different instructions

Installation Instructions

Once all the above steps are done, your Nexus 4 is ready for the installation of the Android 4.4 KitKat ROM. Go to Install Zip > Install Zip from sd card > 0/ and then select the ROM file which you transferred (4.4_mako_odexed.zip is the name of the file you transferred)

Reboot the smartphone after the installation is completed and the first time when the Nexus 4 is rebooting, it would take some time.

If at all you got any issues while installing, you can comment below and we would try to guide you through, but make sure you read the comments at the official XDA thread too: Link